Ghanem, A. H., and N. Gaballah. “Study of Some Physical Properties of Bismuth Doped Borate Glass”. IJRDO-Journal of Applied Science 2, no. 7 (July 31, 2016): 102-120. Accessed November 28, 2024. http://545406.voltageenergyhk.tech/index.php/as/article/view/1314.